package nz.ac.massey.xmldad.webservice;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

/**
 * Instantiates and holds a reference to a hibernate session factory.
 * @author Nathan C Jones
 */
public class HibernateUtil {
	
	private static final SessionFactory sessionFactory;

    static {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            sessionFactory = new Configuration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    /**
     * Get a Hibernate session factory.
     * @return a hibernate session factory.
     */
    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    } 
}
